linux-kernel - Re: Smart Battery System Design (was: Re: Question about userspace-consumer)

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Message-ID: <20090811205957.GD13969@gandalf>
Date:	Tue, 11 Aug 2009 23:59:57 +0300
From:	Felipe Balbi <me@...ipebalbi.com>
To:	Felipe Balbi <me@...ipebalbi.com>
Cc:	Liam Girdwood <lrg@...mlogic.co.uk>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	Mike Rapoport <mike@...pulab.co.il>,
	linux-kernel@...r.kernel.org
Subject: Re: Smart Battery System Design (was: Re: Question about
 userspace-consumer)

Hi,

On Tue, Aug 11, 2009 at 11:49:18PM +0300, Felipe Balbi wrote:
> Sure. Another point to be taken into account is how often to check
> battery status; I mean, if the system is idle, we don't need to check
> battery every second since battery temperature and juice won't change
> that quickly anyways, but when doing some hardcore stuff on the CPU then
> we need to check such variables more often.

oops, SBS Data spec already gives good information about that.
Normally check the battery once every 10 secs.

Refer to SBS Data Spec Item 4.4.5

-- 
balbi
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